NetBeans Tomcat Jsp mysql表单登录 [英] NetBeans Tomcat Jsp mysql forms login
问题描述
我在Tomcat 8.0.15，MySql（带有J连接器），Servlet / Jsp上有一个NetBeans Web项目。我需要安全登录!!!
有登录页面。成功登录后，如果是admin，servlet会重定向到管理页面，如果用户名是standardUser，则servlet会重定向到主页面。
现在什么都没有作品。该页面未被servlet重定向，在提交按钮上按下error.html，并显示response.getStatus（）为0！我测试了（没有登录）servlet用于对数据库进行用户名/密码检查它是否有效。
所以这是我的代码文件：login.jsp：
I have a NetBeans web project on Tomcat 8.0.15, MySql (with Jconnector), Servlet/Jsp. I need a secure login!!!
There is a login page. On successful login, if it is admin, servlet redirects to the admin page, if username is of a standardUser, the servlet redirects to the main page.
For now nothing works. The page is not redirected by servlet, on submit button press the error.html appears and shows response.getStatus() is 0!!! I tested(without login) servlet for username/password check against the DB and it works.
so Here is my code files: login.jsp:
<form id="loginForm" method="POST" action="j_security_check">
<input name="j_username" id="j_username" type="email" value="test.admin@test.com"></input>
<input name="j_password" id="j_password" type="password" value="test"></input>
<input id="loginSubmit" type="submit" value="Login"></input></form>
web.xml：
web.xml:
<servlet>
<servlet-name>LoginServlet</servlet-name>
<servlet-class>ProjectP.Auth</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginServlet</servlet-name>
<url-pattern>/j_servlet_check</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>Login.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<login-config>
<auth-method>FORM</auth-method>
<realm-name>MyDatabase</realm-name>
<form-login-config>
<form-login-page>/Login.jsp</form-login-page>
<form-error-page>/Error.html</form-error-page>
</form-login-config>
</login-config>
<security-role>
<description>Web Site Administrator</description>
<role-name>admin</role-name>
</security-role>
<security-role>
<description>Stansard user</description>
<role-name>user</role-name>
</security-role>
<security-constraint>
<web-resource-collection>
<web-resource-name>ProjectP</web-resource-name>
<url-pattern>/adminpages/*</url-pattern>
<url-pattern>/userpages/*</url-pattern>
<http-method>POST</http-method>
</web-resource-collection>
<auth-constraint>
<role-name>admin</role-name>
</auth-constraint>
</security-constraint>
<security-constraint>
<web-resource-collection>
<web-resource-name>ProjectP</web-resource-name>
<url-pattern>/userpages/*</url-pattern>
<http-method>POST</http-method>
</web-resource-collection>
<auth-constraint>
<role-name>user</role-name>
</auth-constraint>
</security-constraint>
<resource-ref>
<description>DB Connection</description>
<res-ref-name>MyDatabase</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</web-app>
Context.xml：
Context.xml:
<Context antiJARLocking="true" path="/ProjectP" allowCasualMultipartParsing="true" >
<Realm className="org.apache.catalina.realm.JDBCRealm" driverName="com.mysql.jdbc.Driver"
name="MyDatabase" type="javax.sql.DataSource"
connectionURL="jdbc:mysql://localhost:3306/mydatabase"
connectionName="root" connectionPassword="sa"
userTable="administrators" userNameCol="username" userCredCol="password"
userRoleTable="userroles" roleNameCol="role"
auth="Container" maxTotal="100" maxIdle="30" maxWaitMillis="10000"/>
</Context>
LoginServlet.java:
LoginServlet.java:
@WebServlet("/j_servlet_check/*")
@MultipartConfig
public class LoginServlet extends HttpServlet {
protected void doPost(HttpS .......
response.setContentType("text/html;charset=UTF-8"); //text/plain
String username, password;
try {
username = request.getParameter("j_username");
password = request.getParameter("j_password");
if (checkLoginUser(username, password)) { //it works for sure, tested...
response.sendRedirect("./index.html"); // should it work?
HttpSession session=request.getSession();
session.setAttribute( "username", username );
request.getRequestDispatcher("../admin/Administration.jsp").forward(request, response); // mayme this should work!?
是context.xml - 需要领域吗？
那么，如何创建安全登录？
Is context.xml - realm needed?
So, how to create a secure login?
推荐答案
在context.xml中
In context.xml
<context antijarlocking="true" path="/myDBname" allowcasualmultipartparsing="true">
<realm classname="org.apache.catalina.realm.CombinedRealm">
<realm classname="org.apache.catalina.realm.JDBCRealm" drivername="com.mysql.jdbc.Driver">
name="myDBname" type="javax.sql.DataSource"
connectionURL="jdbc:mysql://localhost:3306/mydbname"
connectionName="root" connectionPassword="sasa"
userTable="administrators" userNameCol="Email" userCredCol="Password"
userRoleTable="administrators" roleNameCol="LoginRole"
auth="Container" maxTotal="100" maxIdle="30" maxWaitMillis="10000"/>
</realm>
</realm></context>
web.xml
web.xml
<resource-ref>
<description>DB Connection</description>
<res-ref-name>myDBname</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
<login-config>
<auth-method>FORM</auth-method>
<realm-name>myDBname</realm-name>
<form-login-config>
<form-login-page>/pages/Login.jsp</form-login-page>
<form-error-page>/pages/Error.jsp</form-error-page>
</form-login-config>
</login-config>
<security-role>
<description>Administrator</description>
<role-name>admin</role-name>
</security-role>
<security-constraint>
<web-resource-collection>
<web-resource-name>myDBname</web-resource-name>
<url-pattern>/pages/admin/*</url-pattern>
<http-method>POST</http-method>
<http-method>GET</http-method>
<http-method>PUT</http-method>
</web-resource-collection>
<auth-constraint>
<role-name>admin</role-name>
</auth-constraint>
</security-constraint>
<welcome-file-list>
<welcome-file>pages/home.jsp</welcome-file>
</welcome-file-list>
Copied mysql-connector-java-5.1.23-bin.jar into C:\Program Files\Apache Software Foundation\Apache Tomcat 8.0.15\lib
I also use <%= request.getContextPath() %> in order to connect resources to pages
Copied mysql-connector-java-5.1.23-bin.jar into C:\Program Files\Apache Software Foundation\Apache Tomcat 8.0.15\lib
I also use <%= request.getContextPath() %> in order to connect resources to pages
<link href="<%= request.getContextPath() %>/resources/styles/main.css" rel="stylesheet" type="text/css" />这篇关于NetBeans Tomcat Jsp mysql表单登录的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
